* {
        margin:0 auto;
        padding:0;
}
.left h1{
        margin-left:0px;
        margin-top:10px;
        font-size:25px;
        font-weight:bold;
        width:600px;
}
#maincontent{position:static;width:930px;margin:0 auto;overflow:none}
.left{ width:600px; line-height:25px;overflow:hidden; float:left; margin-right:20px;}
.denglu{
        clear:both;
        width:600px;
        float:left;
        background:#fff;
	color:#000;
}
